baber/WOPTO huggingface dataset:
Patent GB-884686-A (GB)
Title: Improvements in and relating to devices sensitive to pressure
Inventor: BELLER WILBERT ERWIN
IPC: H01H35/26
Filed: 1959-12-08
Abstract: 884,686. Fluid actuation of switches. CONTROLS CO. OF AMERICA. Dec. 8, 1959, No. 41761/59. Class 38 (5). The operating pressure of a diaphragmoperated switch is set by a cam 10 acting on a spring 11, the contacts being reset each time the adjustment is changed. The diaphragm 8 acts through a stud 22 on a toggle action snap switch 7, the movement .of the stud being opposed by the spring 11. The latter is housed in a plunger 37 which is acted upon by an adjustable screw 57 in a spring arm 51 bearing against the cam. The cam has three depres-. sions 49 at different radii from its axis 47 so that three different pressures can be set. Between the depressions are lobes 50 which on changing from one setting to another depress the plunger 37 so that a part 41 thereof depresses the stud 22 to shift the moving contact 29 from its lower to its upper position.
Patent GB-905059-A (GB)
Title: Running gear for transportable containers
Inventor: TELLING GORDON PERCY
IPC: B65D90/18
Filed: 1959-04-27
Abstract: 905,059. Transporting special loads. AIRTECH Ltd. April 21, 1960 [April 27, 1959], No. 41808/61. Divided put of 895,689. Drawings to Specification. Class 108(1). In a runnning gear as in Specification 895,689 the spigot ends which engage the container to be carried are mounted eccentrically on their shafts to allow for differences in the spacing of the holes in the container.
Patent GB-1286482-A (GB)
Title: A spiral reader device
Inventor: PERSSON LARS-JOHAN
IPC: G01T5/02
Filed: 1969-08-25
Abstract: 1286482 Optical apparatus SAAB-SCANIA AB 25 Aug 1969 [28 Aug 1968] 42247/69 Heading G2J [Also in Division G1] A spiral reading device having a mirror 30 rotatably mounted in a support 22, 21 also comprises a periscope 35, 36 mounted with the support 22 for rotation therewith and for relative movement along the support axis, the rotatable mountings of the periscope comprising a first bearing located in a hub 41 at the widest diameter of the cone swept by mirror 30 as it rotates, and a second bearing 42 at a region along the axis remote therefrom. The hub 41 is carried by radial arms 36 of a member 40 secured to support 21. The bearings are supported in guide members described in detail in Specification 1286481. The periscope receives only part of an image of an object reflected by mirror 30 and so spirally scans the object. The operation of the scanner is described in Specification 1286481.
Patent GB-924920-A (GB)
Title: Improvements in and relating to electrical connectors
IPC: H01R13/646
Filed: 1961-11-27
Abstract: 924,920. Jointing by stamping. AMP Inc. Nov. 27, 1961 [Dec. 20, 1960], No. 42308/61. Class 83 (4). [Also in Group XXXVI] A die set for crimping metal parts to form an electrical connector on a cable (see Group XXXVI) comprises a pair of dies 34 and 36 and a pair of indentors 38 and 40. The indentors are designed to pass through coextensive apertures in two ferrules surrounding the cable, to operate on a central ferrule crimping it to the cable conductor, while the dies 34, 36 crimp an outer ferrule to the cable braid and outer cover respectively.
Patent GB-996059-A (GB)
Title: Bundling apparatus
IPC: B65B25/14
Filed: 1961-11-27
Abstract: 996,059. Bundling-machines. TORONTO STAR Ltd. Nov. 27, 1961 [Oct. 25, 1961], No. 42344/61. Heading B8C. A machine for rolling sheet material, e.g. newspapers, comprises means for feeding the sheet material and a wrapper into a plurality of expandible cages 3 and rolling the wrapper around the sheets. A tape or other tie may be applied to reinforce the wrapping. Wrappers 11 are fed from a magazine by a sheet feeder 13 and carried by conveyers 97 to storage position 103 whilst a previous wrapper at storage point 108 has adhesive applied to it by a feed mechanism 109. When the wrapper at position 108 moves to the conveyer, piston operated stops 104 release the next wrapper at 103 which moves to position 108. The sheets 9 to be wrapped are stored in a magazine 10 and fed followed by a wrapper, by a conveyer 1 to the bundling machine (Fig. 8). The sheets enter the machine at the infeed position 4 by means of conveyers 62, 63 in a direction substantially tangential to a central mandrel 36. Driven rollers 43 on arms 46 hingedly connected to the drum flange 6 roll the sheet and wrapper around the central mandrel. The conveyer support arms 67, 80 assist this being also hingedly connected to flange 6. The drum 5 is indexed to move from an infeed through an intermediate to an eject position. At the eject position the cage is opened by the action of cam 87 on roller 60 and piston 88 pushes the completed roll out of the cage. The machine is controlled by a system of relays which work in conjunction with memory circuits so that as one roll is being processed these circuits can be programmed to deal with the next bundle. Specification 996,060 is referred to.
Patent GB-1439044-A (GB)
Title: Processes for the separation of cobalt from the primary products of oxo synthesis and recirculation thereof to the synthesis stage
IPC: C07C27/00
Filed: 1973-09-10
Abstract: 1439044 Decobalting oxo products RUHRCHEMIE AG 10 Sept 1973 [16 Sept 1972] 42394/73 Heading C2C In the separation of cobalt from primary oxo-synthesis products by treatment with steam at 100-220 C. and 5-30 atmospheres pressure, the sulphur content of the primary product is adjusted to at least 15 mg/kg. before or during steam treatment and the cobalt precipitated is separated suspended in an organic solvent and recirculated to the synthesis. The sulphur added may be elemental or as inorganic or organic compounds. The organic solvent preferably comprises oxo distillation residues, The cobalt salts present in the aqueous phase after phase separation may be precipitated with aqueous alkali hydroxide or carbonate and recirculated with the Co precipitated by the steam. Examples treat oxo products from propylene, diisobutylene, C 8 -C 10  α-olefin and isobutene.
Patent GB-1371796-A (GB)
Title: Process for recovering cobalt carbonyl
IPC: C07C45/50
Filed: 1971-09-13
Abstract: 1371796 Cobalt carbonyl DAICEL Ltd 13 Sept 1971 [14 Sept 1970] 42558/71 Heading C1A [Also in Division C2] Cobalt is recovered as dicobalt carbonyl from organic liquids which are the products of an "oxo", hydroesterification, hydrogenation or isomerization reaction and which contain cobalt carbonyl as catalyst by treating such liquids with a metallic extracting agent (as defined) in the presence of water, carbon monoxide and hydrogen, allowing the mixture to stand and separating the aqueous and organic phases to obtain an aqueous solution of a metal salt of a carbonyl cobaltate, then mixing said aqueous solution with (a) a mineral acid or strong organic acid having a pKa below 2À5, in an amount sufficient to decompose said salt and with (b) a water immiscible solvent inert to the carbonyl. product and being a saturated hydrocarbon; an aromatic hydrocarbon, an ester, an ether and mixtures thereof, the amount of this solvent being from 0À1 to 10 times the weight of the aqueous solution, and then heating the mixture to a temperature of from 50‹ to 200‹ C. in an atmosphere of CO at a partial pressure of CO in the range of 70 to 200 kg./cm.<2> gauge and then recovering a solution of dicobalt carbonyl dissolved in the organic solvent. The free carbonyl can be obtained, if desired, by evaporating the solvent. The so-called metallic extraction agent is defined as an oxide, hydroxide, carbonate or bicarbonate of an alkali or alkaline earth metal, Raney iron, oxides or hydroxides of iron, iron salts of weak acids, e.g. iron carbonate, bicarbonate, sulphide, naphthenate, lactate or acetylacetonate, and zeolite containing ions of alkali metals, alkaline earth metals, cobalt or iron. The alkali metals are defined as Li, Na and K, and the alkaline earth metals are defined as Be, Ca, Mg, Ba and Sr. The mineral acid used may be H2SO4, HCl or H3PO4, and the organic acid may be trichloracetic or p-toluene sulphonic acid, and the acid may be used in an amount more than that which is equivalent to the amount of the metal salt of carbonyl cobaltate present. In example propylene is reacted in the presence of toluene in a mixture of CO and H2 under pressure at temperatures up to 130‹ C. to produce the desired oxo reaction product, dicobalt octacarbonyl being utilized as catalyst.
Patent GB-1275145-A (GB)
Title: Device for compensating cylindrical distortion in panoramic aerial recordings
IPC: G03B27/68
Filed: 1969-08-27
Abstract: 1275145 Fibre optics; panoramic cameras OPTISCHE INDUSTRIE DE OUDE DELFT N V 27 Aug 1969 [29 Aug 1968] 42719/69 Headings G2A and G2J [Also in Division H4] A device for compensating cylindrical distortion in panoramic aerial recordings comprises a fibre optical array 9, of rectangular cross-section having a concave cylindrical or part-spherical entrance surface 13 of radius r and a convex exit surface 15 given by wherein # = scanning angle, # # = a small variation in #, #uf = the line part in the entrance surface perpendicular to the generatrix of the exit surface and comprised in the angle ##, and #u'f = the corresponding line part in the exit surface. A distorted image due to image compression towards the edges of a film from either an aerial thermographic system picking up I.R. radiation or from a panoramic camera is focused on the entrance surface 13 and the corrected image is then passed to the film 5, urged against the exit surface 15 of the array 9 by a guide 8. The thermographic system may be as in Specification 1134649 in which IR radiation received is converted to an optical signal of varying intensity which is scanned via a rotating prism system across the entrance surface and the panoramic camera may be as in Specification 809055. Vignetting of the resultant image on the film may be compensated by modulating the current supplied to a light source producing the scanning beam in dependance on the scanning angle.
Patent GB-1437449-A (GB)
Title: Mine roof support chocks
IPC: E21D23/00
Filed: 1973-09-12
Abstract: 1437449 Hydraulic mine roof support chocks GEWERKSCHAFT EISENHUTTE WESTFELIA 12 Sept 1973 [14 Sept 1972] 42892/73 Heading E1P In a mine roof support chock comprising hydraulic props 10 interconnected by a transverse beam 12, an elongate control device 16 for effecting operation of the chock is disposed on the beam in one of two alternative positions transposed through 180‹ whereby the manual control lever 21 can be spaced from and adjacent to one of the opposed walls 12', 12" thereof for selective operation. The control device comprises a unit adapted to be connected to service conduits, a control unit embodying the valves and a selector mechanism incorporating a rotary slide valve operated by the lever, see Figs. 2 and 3 (not shown).
Patent GB-1444135-A (GB)
Title: Yielding stilts for mine roadway
IPC: E21D11/30
Filed: 1973-09-12
Abstract: 1444135 Yielding mine stilts SCHWARZ HOLYWELL Ltd 11 Sept 1974 [12 Sept 1973] 42957/73 Heading E1E A non-reusable yielding mine stilt 1 is formed from a length of steel plate which is bent about its longitudinal axis into a generally triangular shape and provided adjacent its apex with inturned flanges terminating in doubled-over portions 3 which have an upper length removed to form a sealing for an I-section R.S.J. 6, see also Fig. 3, (not shown).
Patent GB-1159385-A (GB)
Title: A Process for producing Photosensitive Emulsion
Inventor: DAVIDGE HAROLD
IPC: G03C1/015
Filed: 1965-10-11
Abstract: 1,159,385. Making emulsions. BRITISH OXYGEN CO. Ltd. Oct.3, 1966 [Oct. 11, 1965], No.43088/65. Heading G2C. A batch process for producing a silver halide emulsion is carried out in a substantially oxygenfree atmosphere.
Patent GB-885692-A (GB)
Title: Improvements in or relating to the production of urea
Inventor: OTSUKA EIJI
IPC: C07C273/04
Filed: 1959-12-18
Abstract: Biuret-enriched urea mother liquor, obtained after separation of a biuret-impoverished urea by crystallization from a urea synthesis product comprising an aqueous solution of urea and biuret, is recycled to a stage in the urea synthesis which favours the conversion of biuret to urea.  Such a stage is preferably characterized by pressures of 5 to 300 atmospheres, temperatures of between 100 DEG C. and 200 DEG C. and the presence of free ammonia. Such conditions may be provided in the autoclave during the synthesis of urea from ammonia and carbon dioxide or in high pressure distillation or scrubbing towers leading from the synthesis autoclave.  The biuret-containing mother liquor may be used to absorb unreacted carbon dioxide or other reactants before returning it to the synthesis autoclave.  Specification 885,691 is referred to.
Patent GB-1475675-A (GB)
Title: Surgical masks
IPC: A41D13/11
Filed: 1974-07-24
Abstract: 1475675 Surgical mask SOUTHALLS (BIRMINGHAM) Ltd 24 July 1974 [18 Sept 1973] 43679/73 Heading A5T A surgical mask comprises a rectangular sheet of tissue having a plastics coating or being a lamination with a plastics film to render the sheet impervious to air, the sheet being folded along a substantially central longitudinal line 8 to form two parts 5 which are further secured together along a line 9 or in a zone extending obliquely across each folded corner, the longitudinal free edges 6 of the parts being folded over and secured to form tunnels which accommodate a cord 7 or tape, the plastics in use being presented to the face. The zones are generally triangular. Cords 7 loop around the ears. An inner layer of paper composed of heat-sealable fibres may be disposed adjacent the plastics. Edges 6 and lines 9 or the zones are heat sealed. The plastics may be polypropylene.
Patent GB-1490202-A (GB)
Title: Heat-pump system for hot-water space heating
IPC: F25B30/02
Filed: 1974-10-09
Abstract: 1490202 Space heating systems; heat pumps H LEDERMANN 9 Oct 1974 [16 Oct 1973] 43762/74 Headings F4U and F4H A heat pump system for heating water in a storage vessel 10 for use in room heating comprises a compressor 3, a condenser 4 and two alternative evaporators 2, 15. The evaporator 2 is located in the atmosphere and air is blown through it by a fan 1. The evaporator 15 is operable to cool water which is extracted from a central region of the vessel 10 through pipes 32, 33 and returned into a lower region through a pipe 34 and a pump 16. Water extracted from the lower region of the vessel through a pipe 30 and a pump 11 is heated in the condenser 4 and returned either to the central region of the vessel 10 through a pipe 29 or to the upper region through a pipe 36 depending upon the setting of a valve 9. The valve 9, a mixing valve 18 and the fan 1 are controlled by a control device 8 connected to thermostats 7, 12 and 17.
Patent GB-1204228-A (GB)
Title: Analog-to-digital cyclic forward feed successive approximation conversion equipment
Inventor: PARADISE RONALD Y
IPC: H03M1/00
Filed: 1968-09-16
Abstract: 1,204,228. A/D converters. SINGERGENERAL PRECISION Inc. 16 Sept., 1968, No. 43952/68. Heading G4H. In an analogue to digital converter the input analogue signal is first converted to a coarse digital value this coarse digital value then being reconverted into analogue form and subtracted from the original signal. The difference between these two signals is amplified by a predetermined scale factor and converted into digital form to provide a fine digital value. In the embodiment described (Fig. 3) the input analogue signal E is compared in a comparator 55 with a reference feed back signal derived from a resistor chain 53 the resistors of which are selectively switched in under the control of bi-stable devices 69. When a coarse balance has been achieved between the reference signal and the input signal E the states of bi-stable devices 69 are transferred to a summing network register 47 the output signal Eb from which is a coarse approximation of the input signal. The states of bi-stable devices 69 are also transferred to an output register 51. The coarse signal E b  is subtracted from the input signal E and amplified by a factor of 2<SP>5</SP> this difference signal then being fed via a relay switch 89 to the comparator 55 for digitizing in a similar manner to the original input signal. At the end of the digitization cycle the states of the bi-stable devices 69, now representing the fine digital value are also transferred to output register 51 the two most significant bits being combined with the two least significant bits of the coarse signal. A bias voltage B is added in to the original input signal E to ensure that the coarse and fine signals are additively combined. (For Figure see next page)
Patent GB-1058789-A (GB)
Title: Control system for excavating machinery
IPC: H02P7/06
Filed: 1965-10-18
Abstract: 1,058,789. Control of several D.C. motors. RUSTON-BUCYRUS Ltd. Oct. 18, 1965 [Oct. 23, 1964], No.44005/65. Heading H2J. [Also in Division G3] Each of the three movements of an excavator. namely hoist -lower, crowd-retract, and swing, are effected by a Ward-Leonard set having an individual control unit. The hoist generator has reversing field windings supplied through separate silicon-controlled rectifiers, a firing control device being in the form of a magnetic amplifier comprising reference control, loadcurrent responsive and voltage-responsive windings. As the voltage of the generator increases, the degree of saturation of the magnetic amplifier is decreased to retard the firing time of the controlled rectifier and reduce the generator field current. When the load current reaches a predetermined value, a Zener diode, forming part of a discontinuous gating circuit, breaks down to energize the current-responsive windings on the magnetic amplifier. This has a limiting effect upon the firing control device to reduce the generator field current. The crowdretract control is similar to that described, the control units for the two movements having the same construction and each comprising circuit components mounted on a panel. The components for the swing control are also mounted on a single panel, and the mounted components are the same as for the other panels. In the case of the swing control generator, however, a discontinuous gate is inserted in the circuit for the voltage-responsive windings and is removed from the current feedback circuit. Each control panel comprises a flat metal base for mounting in a cabinet, and carries the silicon-controlled rectifiers together with the firing control devices as well as full wave rectifiers which supply the generator field windings through the controlled rectifiers. Smaller components carried on the base include diodes in the circuit of the reference control windings, the discontinuous current gates which comprise potted assemblies embedding the Zener diodes, and harmonic suppressing chokes. The base also supports a board for mounting resistors which have a hinged cover. A panel is replaced by removing a terminal block which is then secured on the substitute panel so that the block correctly positions the conductors for ready attachment to a terminal strip. Thus, the new panel is wired for crowd, swing or hoist control. Conductors making internal connections in the panel are mounted in the terminal block.
Patent GB-1347156-A (GB)
Title: Teaching machines
IPC: G09B11/04
Filed: 1971-09-22
Abstract: 1347156 Selective signalling FRUNZENSKY POLITEKHNICHESKY INSTITUT MINISTERSTVA NARODNOGO OBRAZOVANIA KIRGIZSKOI SSR 22 Sept 1971 [22 Sept 1970] 44145/71 Heading G4H [Also in Division H1] A teaching machine has an encoder comprising a board bearing a first array of contacts each of which can be contacted by a respective one of a second array of contacts spring-loaded in sockets of a second board when an expendable programme punched card between the boards has a hole in a corresponding position. The contacts of the first board are connected to a graphic answer input device, and those of the second board to a comparator.
Patent GB-441625-A (GB)
IPC: G03C1/34
Abstract: 441,625. Photographic plates, films, &c. I. G. FARBENINDUSTRIE AKT.-GES., Frankfort-on-Main, Germany. July 23, 1934, Nos. 21478, 21479, and 21480. Convention dates, July 22, 1933, Nov. 14, 1933, and June 9, 1934. [Classes 98 (i) and 98 (ii)] Photographic emulsions are stabilized against fogging by incorporating a sulphinic acid or a seleninic acid or a soluble salt of such acid in the emulsion or in any constituent of the photographic material which comes into close proximity or contact with the emulsion. Thus, the acid or salt may be incorporated in supports ; substrata; backing, intermediate, under, or protective layers ; or in barium sulphate layers. Suitable acids and salts are specified and examples are given of the incorporation of suitable salts in emulsions for films and plates, by addition to the emulsion and by bathing, in an anti-halation layer of manganese dioxide and gelatine, and in backing- paper for roll films.
Patent GB-967895-A (GB)
Title: Vinyl chloride copolymers and methods of making the same
IPC: C08F18/04
Filed: 1960-12-23
Abstract: True and uniform copolymers of vinyl chloride and a non-volatile vinyl ester of a monocarboxylic acid containing from 12 to 18 carbon atoms are made by introducing vinyl chloride vapour into a reaction zone containing the vinyl ester and maintaining the vapour pressure of vinyl chloride in the reaction zone at a constant level which is less than the saturation pressure of vinyl chloride.  The examples describe the copolymerization of vinyl chloride and vinyl stearate in suspension using polyvinyl alcohol, sodium bicarbonate and lauroyl peroxide.
Patent GB-1438395-A (GB)
Title: Sound recordint and or reproducing apparatus
IPC: G03B19/18
Filed: 1973-09-21
Abstract: 1438395 Recording on film EASTMAN KODAK CO 21 Sept 1973 [21 Sept 1972] 44337/73 Heading G5R In a sound motion picture camera formed with a chamber 16 for receiving a film cartridge, the sound recording components including capstan 36 and record head 48 are covered with a shroud member 60 formed with sloping surfaces 66a, 66b which guide a part of the film which is external to the cartridge to its correct position relative to the record head during loading of the cartridge. Pressure roller 42, parts 52a and 52b of guide members and head pressure member 50 are retracted through opening 19 during loading of the cartridge and are moved into their operating position by manual actuation of a lever 72. A loop sensor 54 is also provided which operates with control apparatus (not shown) to ensure the correct number of film frames between the film exposure aperture 26 and the recording head.
Patent GB-863603-A (GB)
Title: Improved ice mould
IPC: F25C1/06
Filed: 1959-12-31
Abstract: 863,603. Ice-making. WILBUSHEWICK, E. Dec. 31, 1959, No. 44487/59. Class 29 The hinged bottom 11 of a rectangular ice-mould 1 is formed with a raised periphery 12 which seals against the mould bottom and extends slightly inwards of the mould walls along at least those sides which are perpendicular to the hinge axis 10 and the resulting recess 15 is provided with a surface to which ice will not adhere. The result is that the ice is freed from the bottom quicker when harvesting and, when the bottom has opened, the block slides down on the raised periphery 12 without touching the special surface which is thus undamaged. As shown, the surface is an insert 14 of wood e.g. ebony but it may be a layer of wax, lacquer, polytetrafluoroethylene, or chloroprene rubber. Specification 718,240 is referred to.